Improvement in vises



2SheetsSheletL W. H. JACO BY.

Improvement in Vises.

No. 132,402. Patented 096522,1872

2 Sheets--Sheet 2.

Iw. HLlAcoBY.

Improvement in Vises.

Patented'oct.r22,'1a72.

1 "lllnumumll UNITED STATES WILLIAM H. JACOBY, OF MINNEAPOLIS, MINNESOTA.

IMPROVEMENT IN VISES.

l Specication forming part of Letters Patent No. 132,402, dated October 22, 1872.

To all whom t may concern:

Be it known that I, WELIAM H. JAcoBY, of Minneapolis, in the county of Hennepin, in the State of Minnesota, have invented certain Improvements in Vises or Clamps for holding miter-jointed pieces of wood in position to be secured in place, of which the following is a specification The object of this invention is-to introduce into use a vi'se or clamp that will securely hold two pieces that are cut to a miter-joint while such pieces are being nailed, pinned, or feathered together; and it consists in the construction of the parts and their arrangement whereby the object is perfected, as will more v fully hereinafter be described.

vIn the drawing, Figure l. is an upright front view of the clamp or vise fast to the side of the work-bench; Fig. 2 shows the clamp or vise in horizontal position on top of the bench 5 Fig. 3 is a back-side view of the clamp or vise in upright position; Figs. 4 and 5, enlarged details; and Fig. 6, crosssection on xx of Figs. 1 and 2.

A is a work-bench of ordinary construction and supported on legs a a. B is the standing or fixed part ot' the vise or clamp, which is preferably constructed ot' metal, having slot b cen trally therein, two side slots, b b, parallel thereto, and smooth-faced flanges b4 project-l ing from the inclined topparts ot' part B, which form the outer-part of the clamping or holding jaws ot' the vise. B is a sliding'part, bifurcated near its upper end, each part terminating in angular serrated jaws b b', while the lower body part has a backward projection that tits and slides in slot b of stationary part B, and projecting back far enough to I have the teeth or notches b clear of the back side of part B. b5 b5 are screws that are turned into the sliding part BJ at be 116 through slots b in fixed part B. The heads of the screws sliding against the back side of part B prevent the sliding part B from separating from part B, but allow part B to freely slide in the open slot b. O is a lever pivoted at c to part B,with its short end shaped to take holdv of the notches b on the sliding part B', as seen at c, Fig. 3, while to the long end at c is attached a connectingrod, 0"', which connects at d to treadle D that is pivoted at d to leg c ofthe bench A. c4 is a spring att-ached at its upper end to the xed part B, and at the lower end to lever d is a plate on treadle-lever D, and ofthe proper form to take other end of the bell-crank with the trcadlelever D, as seen in Fig. 2. This vise or clamp is especially designed for securely holding two sides or parts ot' a frame that are mitered together at their meeting-angles `while the parts are being permanently nailed or feathered, and in Fig. l is shown the mitered pieces that form afranie being put together and held in the vise 0r clamp while the nails or feathers Iare inserted. F represents the side pieces-that compose the frame firmly clamped to a joint at the meeting-angles, and held in such position while the nails f are driven through one side into the otherto hold them in contact and together, as the sliding part B', with its angular serrated jaws b', takes hold ot' the inner edge of the two pieces and forces them together' at their meeting-angles, and clamps them against the projecting jaws bL on the fixed part B by the action of forcing the treadle-lever D down by the foot, when the plate d on the treadle-lever will engage a notch in plate d on leg c, and the pieces F will be securely clamped in proper position for nailing or otherwise holding the joint firmly in place.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

l. The xed or stationary part B having slots Z) and b b therein and projecting angular jaws b4 b, and the sliding part B having serrated jaws b bf, and constructed to slide in the slot b of part B, and secured thereto in the manner and for the purpose substantially as described.

2. The combination of the treadle-lever D, rod c", lever C, and sliding part B withthe stationary part B, constructed and operating substantially in the manner and for the purpose described.

WILLIAM H. J AGOBY.

Witnesses:

H. J. JAcoBY, CHAs. H. WooDs. 

